AVR 505 - Harman Kardon Audio User Guide / Operation Manual. Page 21

OPERATION 21

DOLBY DIGITAL

Available only with digital input sources encoded with Dolby Digital data. It provides 

Center: 0 ms – 5 ms

up to five separate main audio channels and a special dedicated Low Frequency Effects 

Initial Setting – 0 ms

channel.

Surround: 0 ms – 15 ms
Initial Setting – 0 ms

DTS

Available only with digital input sources encoded with DTS data. Available on special 

Delay time not adjustable 

DVD, LD and audio-only discs, DTS provides up to five separate main audio channels and 
a special dedicated low frequency channel.

DOLBY PRO LOGIC II

Dolby Pro Logic II is the latest version of Dolby Laboratory's benchmark surround technology that

Movie:

creates or decodes full range, discrete left, center, right, right surround and left surround channels 

10 ms - 25 ms,

from either matrix surround encoded programs and conventional stereo sources. The Dolby 

Initial Setting - 10 ms,

ProLogic II Movie mode is optimized for movie soundtracks that are recorded with matrix 

Music:

surround, by creating true rear left, center and right signals. The ProLogic II Music mode 

0 ms - 15 ms,

should be used with musical selections, that are recorded with matrix surround or with normal 

Initial Setting - 0 ms

stereo mode, creating discrete rear left and right signals.

DOLBY 3 STEREO

Uses the information contained in a surround encoded or two channel stereo program to 

No surround channels 

create center channel information. In addition, the information that is normally sent to the 
rear channel surround speakers is carefully mixed in with the front left and front right 
channels for increased realism. Use this mode when you have a center channel speaker 
but no surround speakers.

THEATER

The THEATER mode creates a sound field that resembles the acoustic feeling 

Delay time not adjustable 

of a standard live performance theater, with stereo and even pure mono sources.

HALL 1

The two Hall modes create sound fields that resemble a small (HALL 1) or

Delay time not adjustable

HALL 2

medium sized (HALL 2) concert hall, with stereo and even pure mono sources.

VMAx Near

When only the two front channel loudspeakers are used, Harman’s patented VMAx mode 

No surround channels 

VMAx Far

delivers a three-dimensional sound space with the illusion of “phantom speakers” at the 
center and surround positions. The VMAx N, or “Near Field” mode should be selected when
your listening position is less than 1,5m from the speakers. The VMAx F, or “Far Field” mode
may be selected when your listening positioin is greater than 1,5m from the speakers.

5-Channel Stereo

This mode takes advantage of multiple speakers to place a stereo signal at both the front and

No delay is available for 

back of a room. Ideal for playing music in situations such as a party, it places the same signal

this mode

at the front-left and surround-left, and at the front-right and surround-right speakers. The center
channel is fed a summed mono mix of the in-phase material of the left and right channels.

Surround Off (Stereo)

These modes turn off all surround processing and present the pure left- and right-channel 

No surround channels 

Surround Off (Bypass)  presentation of two-channel stereo programs. The Surround Off (Bypass) mode may only be 
DSP Surround Off 

used with analog source inputs, as it preserves the analog format of the audio signal for its 
entire path of travel through the receiver to the speaker and subwoofer outputs, bypassing 
all digital processing. Digital bass management is not available in Surround Off mode. The 
DSP Surround Off mode can be used with either an analog or digital input, as the signal 
undergoes digital bass management to optimize the distribution of the low frequencies 
between the main speakers and a subwoofer.

LOGIC 7 C
LOGIC 7 M

An advanced mode that extracts the maximum surround information from either
conventional stereo material or surround-encoded programs. When used with encoded
material, decoding is more accurate in terms of the placement of sounds, and fades and pans
are much smoother and more realistic than with former decoding techniques. Logic 7 also
delivers increased spaciousness and a wider sound stage when it is used with conventional
natural stereo recordings and music programs throug the use of the natural surround
information present also in those stereo recordings. The Logic 7C or Cinema mode is tailored
to provide an optimal sound field for movie soundtracks. The Logic 7M or Music mode uses a
decoding formula that is best suited to music.

Delay time not adjustable